Radiator



a. H. LOBE R.

RADIATOR.

APPLICATION FILED JAN.30, I919.

Patented Nov. 2, 1920.

4 I r I 4 UNITED STATES PATENT oFi'icE.

GEORGE E. LOBEB, OF TOLEDO, OHIO, ASSIGNOB TO THE LOBER RADIATOR & MANU-FACTURING COIBTPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

namaron To all whom it may concern." I

Be it known that I, GEORGE H. LoBER, a citizen of'the United States, anda resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Radiator; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawingsand to the characters of reference marked thereon, which form a part ofthis specification.

My invention has for its object to provide a radiator that will not beinjured by repeated freezing. In the ordinaryradiator, repeatedfreezingof the radiator causes permanent distention of the water passageways,the passageways being enlarged each time the radiator is frozen causing,eventually, the radiator to burst. Each time'that the water passagewaysare enlarged by freezin of the water it permits an increased volume ofwater to reside in-the passageways and subsequent freezing causes thefurther separation of the walls of the passageways until the radiatorrips or bursts at the seams or at some weak point in the radiator wall.

By my invention is provided a means whereby the volume of the water willbe materially kept constant, notwithstanding repeated freezing of thewater in the radiator. In my invention is provided an e1as-- tic meanswhich causes the return of the walls of the passageways to the samecondition in which they existed before freezing. In this connection myinvention particularly relates to a means that forms a spacing means toallow the air to circulate between the air passageways and also a meansfor prevention of the permanent distention of the water passageways.

The invention may be contained in radiators of different forms and maybe used to construct radiators of different forms. ,I have selected aradiator containing the invkention and shall describe the samehereafter. The radiator selected is illustrated in the accompanyingdrawings.

Figure 1 of the drawings illustrates a front view of a conventional formof a radiator and showing in a general and imperfect to 'cool the thatis, they run vertically with "Specification of Letters Patent. PatentedNOV. 2, 1920. Application filed January 30, 1919. Serial No. 274,084.

way a radiator containing the invention. Fig. 2 is an enlarged view of apart of a rad1ator core. Fig. 3 illustrates a broken perspective view 0the parts of a radiator core to more clearly show the details ofconstruction of the parts of the core.

from adjoining pairs of strips to permit the air passing between thepairs of strips water that passes through the passageways formed by thestrips, The pairs of strips 3, 3 are provided with the channels 4 thatare formed along the central portion of the strip and runs parallel withthe passageway formed bythe strips, respect to the radiator. The edgesof the 'strips are provided with zigzag corrugations 5 and the channels4 and the zigzag corrugations are so formed that when the pairs ofstrips are placed together such that the zigzag corrugations will fitone into the other, the channels 4 will be placed opposite to each otherin each pair of strips and so as to form enlargcd portions 6 of thewater pasageways formed by the strips. The strips 3, 3 are formed ofsoft brass, that is, non-spring brass, in order that the strips may bereadily formed without ripping the brass. Other ksuitable metals may. beused in lieu of the rass.

Between adjoining pairs of strips is located a strip formed of springbrass hav-' ing, preferably, channels extending longitudinally withrespect to the strips. The central portion of the strips 7 that form thespacing strips, are cut at intervals so asto form curved flanges 8 and 9that extend from the surface of the strip 7 and so as to present acurved surface to the strips that form the walls of the passagewayslocated on opposite sides of the spacing strips 7 The central portionbeing of spring brass and, if desired, the strips 7 may be thicker thanthe strips'3, the flanges 8 and 9 will operate as springs to pressagainst the strips 3 to force the strips together until the per-- tionsof the strips 3, between the channels 4, abut. When the water in thepassageways, formed by the pairs of strips 3, freezes 1t causesdistention or separation of the strlps 3. When the ice melts the springs8 and 9 operating on the walls 3 force them together and thus preventspermanent distention and increase of the volume of water, wl1 1ch, 1nthe subsequent freezing operation ordinarlly would cause furtherdistention than in the first freezing and would eventually result in theripping or bursting of the radlator.

The spring flanges 8 and 9 are preferably formed at points suflicientlyremote to permit suflicient rigidity of the portions 10, located betweenthe points at which the flanges 8 and 9 are formed, to cause the strips3 to return to their normal position after freezing. Inasmuch as thepressure required to cause the non-spring strips 3 to return, and inorder that the effect of the temporary stretching, due to the freezlngof the water, may be overcome, a conslderable pressure on the strips 3is required. For this reason the portions of the strlps 7 that are cutto form the flanges 8 and 9 may not be placed too near, otherwise therewould be merely a tilting effect or a slight turning movement of thespring flanges and the 1ntermediate portions of the strips 7. Also toincrease the rigidity of the spring flanges 8 and 9 and theintermediateportions 10 of the strips 7, the strips 7 may be provided With verticalcorrugations or with channels 11 of a form substantially the same asthat formed in the strips 3, that is, substantially like the channels 4.

The spring flanges 8 and 9 are formed by a die which will make two shortcuts slightly remote from the edges of the strip and a transverse cutconnecting the central portions of the longitudinal cut thereby leavingtwo lips that are bent by the die so that they will curve outward andupward in one case, and curve outward and downward in the other case toform the spring flanges 8 and 9.

The strips 7 are also formed with zigzag corrugations 12, similar inform to the'zigzag corrugations 5 of the strips 3. In order that thezlgzag corrugations may be formed in the strips 7, the edges of thestrips 7 are annealed in such a way as to prevent the annealing of thecentral portion of the strip, particularly that portion surrounding thecuts that are made in the strips 7 to form the spring flanges 8 and 9which leaves throughout the length of the strips 7 a rigid bandextending from thetop to the bottom of the strip while only the portionsof. the edges of the strips 7 are annealed that are bent or stretched informing the zigzag edge corrugations 12.

In assembling parts of the radiator core the strips 7 are so placedrelative to the strips 3 that the corners of the zigzag corrugations ofthe strips 7 will abut With the corners formed by fitting together thezigzag corrugations of the pairs of strips 3. This will form a spacebetween consecutive pairs of strips 3 through which the air may pass.The air will pass through the square openings that are formed by theplacing of the strips having the zigzag corrugations together in themanner described. When the strips are thus placed together they aresecured in a form and dipped in melted metals, such as solder, so astoseal the water passageways formed by the pairs of strips 3 and to securethe strips 3 and 7 in their relative positions and in such a position asto cause the spring flanges 8 and 9 to press against the walls of thepassageways, that is, against the strips 3.

I claim 1. In a radiator, a plurality of pairs of strips having fittingcorrugated sealed edges and forming passageways for water, a pluralityof strips located intermediate the pairs of strips and having corrugatededges for spacing the adjoining pair of strips and having flangesextending laterally from the central portions of the last named stripsto press against the pairs of strips and located in opposite sides ofthe second named strips, the said flanges formed by making a pluralityof cross cuts located in spaced relation along the said second namedstrips and cuts extending parallel with and in proximity to the edges ofthe said second named strips and bending the portions thus formed inopposite directions from the body portions of the second named strips bymoving the edges formed by the transverse cuts in opposite directionsfrom the second named strips.

2. In a radiator, a plurality of pairs of strips forming waterpassageways, a plurality of strips, the central portions of the stripsformed of spring brass and having laterally extending spring flanges forpressing the pairs of the strips, the edge portions having corrugationsfor separating the pairs of strips.

3. In a radiator, a plurality of pairs of strips having fittingcorrugated sealed edges and forming water passageways, a lurality ofstrips, the edges of the secon named strips having corrugations forseparating the pairs of strips, the central portion of the second namedstrips formed of spring brass and having laterally extending springflanges for pressing together adjoining pairs of strips.

4. In a radiator, a plurality of pairs of strips forming waterpassageways, a plurality of strips having laterally extendin springflanges for pressing the pairs 0 strips and having channels extendingthrough the flanges and the body of the strip.

5., ln a radiator, a plurality of strips, the

- pairs of strips.

6. In a radiator, a plurality of pairs of strips forming waterpassageways, the edges of the pairs of strips having corrugations, a

, plurality of strips located intermediate the pairs of strips, thecentral portion of the last named strips formed of spring brass andhaving the laterally extending curved spring 15 flanges for pressing theadjoining pairs of strips and having annealed corrugated edges forspacing adjoining pairs of strips.

7. In a radiator, a plurality of pairs of stripsvforming Waterpassageways, a plurality of strips located between the pairs of strips,the central portions of the strips formed of spring brass and havinglaterally extending spring flanges for pressing the pairs of strips, theedge portions of the second named strips formed of annealed brass andhaving corrugations for separating the pairs of strips.

In testimony whereof, I have hereunto signed my name to thisspecification.

GEORGE H. LOBER.

